Maintenance; Maintenance Plan; Checking For Damage; Calibration - Magnet-physik FH 54 Operating Instructions Manual

Gauss- / Teslameter

8 Maintenance

8.1 Maintenance Plan

WHAT?
Checking the instrument and the
accessories for damages
Calibrating the instrument and
probe(s)
The checks shall be periodically repeated and documented.

8.2 Checking for Damage

The FH 54 and all accessories must be checked once a month for damages. If any of the
components, in particular the instrument housing, a probe or an optional line power supply (AC
adapter) are damaged, the equipment must only be used if it has been cleared for operation by
an authorized person. The damaged parts shall be replaced or sent to the manufacturer (Magnet-
Physik) for repair as soon as possible.

8.3 Calibration

Only regular calibration ensures accurate and reliable measuring results.
The FH 54 and the probe(s) should be calibrated using suitable references normally once a year.
We recommend having this calibration carried out by the manufacturer (Magnet-Physik) or an
authorized calibration laboratory.

8.4 Troubleshooting

In case of trouble with the FH 54, refer to the following instructions.
1. If the instrument cannot be switched on, please check or replace the batteries. If you use the
optional power supply, make sure that the power line is OK, and the power supply is
properly connected to mains and to the instrument. Remember that the Power on key must be
pressed at least one second to switch the instrument on.
2. Probe missing: Probe missing is always displayed if no probe is connected to the FH 54. If
it is displayed although a probe is connected to the instrument, probably the probe became
defective. Connect the probe without the cable. If furthermore Probe missing is displayed,
you can send the probe to MAGNET-PHYSIK for inspection. If available, you can also
check the instrument with another probe.
3. Zero probe fails to set the display to zero: Check if the Relative function is switched off.
Make sure, that the probe is apart from larger magnetic fields (AC and DC) during zeroing
and that it is not moved. Use the shielding chamber. If the display still cannot be set to zero,
BA - Nr.: 2000540EBA01
WHEN?
monthly
e.g. once a year or
every two years
TH
S , 24 , 2019
EPTEMBER
WHO?
Operator
Manufacturer or authorized calibration
laboratory
FH 54
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